Update esp_config and add new feature

Closes https://github.com/espressif/esp-idf/issues/3372

components/mbedtls/port/include/mbedtls/config.h

@@ -1,9 +0,0 @@
-/* This shim header is added so that any application code
-   which includes "mbedtls/config.h" directly gets the correct
-   config. */
-#pragma once
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include_next "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif